cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A197473 Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,1,0,0,0 for x=0,1,2,3,4.

Table of values

n a(n)
1 4
2 50
3 374
4 2824
5 22672
6 165200
7 1265828
8 9507212
9 72145488
10 544829612
11 4121917612
12 31166838320
13 235726500646
14 1782712177744
15 13482608699280
16 101968288116918
17 771180418816752
18 5832406885650952
19 44110365514811080

List of values

[4, 50, 374, 2824, 22672, 165200, 1265828, 9507212, 72145488, 544829612, 4121917612, 31166838320, 235726500646, 1782712177744, 13482608699280, 101968288116918, 771180418816752, 5832406885650952, 44110365514811080]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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